Scatterplot, i need to plot one point instead of 4 present in my table

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scatter(A, B, 1, C)
cb = colorbar();
set(gca,'clim',[0 50])
This is my original plot. A,B,C are table columns of same lenght (500k rows, containing latitude, longitude and value correspondent). I need to draw a scatter of 500k/4 x 500k/4 instead of 500k x 500k, every four near points on the original scatter must became a single point and his value (on C) must be the mean value of the four points. How can i do that?
This describes my problem, but i don't have a continuos signal, some points are missing
  4 个评论
Adam Danz
Adam Danz 2020-1-31
How are your data arranged? Do you have a vector of x values, a vector of y values, and a vector of color scale values?

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回答(1 个)

the cyclist
the cyclist 2020-1-30
If I understand correctly, you want to do the following:
A_mean = mean(reshape(A,4,[]))';
B_mean = mean(reshape(B,4,[]))';
C_mean = mean(reshape(C,4,[]))';
and plot those instead of your original variables.
  3 个评论
the cyclist
the cyclist 2020-1-30
OK, I guess I did not understand your original question, then.
When you say 4 points "near" each other in your question, do you mean the vector indices are near each other (e.g. the 1st, 2nd, 3rd, 4th values in the vector), or do you mean that when you have plotted them, they are physically near each other (i.e. "nearest neighbors")?

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